Andrew b



(No Model.) l

E. S. MURRAY 8v H. R. COLE.

1 CLUTCH POR TOBOGGAN CARS. No. 561,169. Patented June 2, 1896.

\\\\\\\ \\/A YI' ANDREW EGRAQIQM:PHOTO'UMQWASNINGI'UKD C UNITED STATESPATENT OFFICE.

EDV IN S. MURRAY AND HARTLEY R. COLE, OF I-IAVERHILL, MASSACHU- SETTS,ASSIGNORS TO ORLANDO BROWN AND CHAS. N. GRANT, OF

SAME PLACE.

CLUTCH FOR ToBoelGAN-CARS.

SPECIFICATION forming part of Letters Patent No. 561,169, dated June 2,1896.

Application nea January 1i, 1894. serial No. 496,479. N0 model.)

To all whom it may concer-1t:

Be it known that we, EDWIN S. MURRAY and HARTLEY R. COLE, of Haverhill,in the county of Essex, State of Massachusetts, have invented certainnew and useful Improvements in Clutches for Toboggan-Cars,of which thefollowing is a description sufciently full,

clear, and exact to enable any person skilled in the art or science towhich said invention appertains to make and use the same, referencebeing had to the accompanying drawings, forming part of thisspecification, in which- Figure 1 is an end elevation of a portion of atoboggan-car provided with our improved clutch, and Fig. 2 a bottom planview of the same.

Like letters of reference indicate corresponding parts in both figuresof the drawings.

Our invention relates especially to an improvement in the cable grips orclutches for cars employed on toboggan-slides, it being especiallydesigned for use with a slide shown and described in the application ofChas. N. Grant for improvement in roller-toboggans, filed October 10,1892, Serial No. 448,382, the object being to provide a clutch by whichthe hold upon the actuating-cable of the slide is rendered positive.

The nature and operation of the improvement will be readily understoodby all conversant with such matters from the following explanation.

In the drawings, A represents the body of the car, which may be of anysuitable form and construction. At the forward end of the car a rigidhead block B is secured, said block being pendent vertically from thecarbody and provided on its inner face with a groove b', which runslongitudinally of the car. In the same plane as the head-block, andsecured to the bottom of the car by a plate f, there is a block g, fromwhich a horizontallyarranged arc or segment C projects toward the rearof the car. A bell-crank lever D is pivoted by its .long arm j to theplate f, and is slotted to work on the segment C, which serves as aguide therefor to prevent the vertical movement of the lever andrelieving the strain on its pivot. In the free end of the short arm ofthe bell-crank lever a grooved pulley 7c is pivoted, its grooveregistering with the groove b in the head-block B. The pivot-opening min the lever is elongated to permit the pulley to play laterally, thislast motion being deemed essential to afford the proper grip.

The segment C has a peripheral boss P, as shown in the detail in Fig. 2,said boss being arranged to iit the groove of the pulley. The block gisbeveled at q to engage the inner edge of the short arm of the lever andact as a stop. At the outer end of said arm there is a bunter r, and acoiled spring t has one end secured at o to the body of the car, its

opposite end being provided with a strap w,

which passes around the pivot end of the long arm of the bell-cranklever, said spring acting contractively to throw the free end of thelever inward against the stop-block g.

The cable H in the use of our improvement is disposed between the blocksB and g and travels in the direction indicated by the arrow in Fig. 2.

The tension of the spring 1f throws the grippulley 7c inward, so thatthe space between said pulley and the head-block B is less than thediameter of the cable. Said pulley rolling on the boss of the segment isforced against the cable, tightly locking the car to it. The car beingmounted on tracks in the ordinary manner of rolling toboggans is carriedalong by the cable, and at the end of its route a projection on thetrack is arranged in position to engage the block r of the lever D,throwing said lever outwardly and releasing the cable,when the car maybe readily stopped.

Much difficulty has heretofore been experienced in gripping the cable bythe clamps ordinarily employed from the fact that said cable, which runsat a high rate of speed,will, when wet or greasy, slip readily throughthe clutch and retard or slow the progress of the car. By the meansherein employed the cable is so jammed between the pulley 7c andheadblock B that itis practically impossible for it to slip.

Having thus explained our invention, what we claimis- IOO l. In aroller-toboggan ear the combination with the bleek grooved to receive acable of the angle-lever pivoted on said ear, a. guide and stop for saidlever, and a pulley mounted on a movable pivot in the free end of saidlever in position to crowd the oable against said block.

2. In a roller-toboggan ear the combination of the head-block, B; thespring-tensioned pivoted lever, D 5 and the pulley, 713, mounted on amovable pivot in the free end of said lever, all being arranged tooperate Substan tially as specified.

3. In aroller-toboggan ear the combination of the grooved head-bloek,l3the segment and stop-bleek, g, the spring-tension lever Working on saidsegment and a grooved pulley in the free end of said lever registeringwith the arranged to operate siibstantially as Specified. 3o

, EDWIN S. MURRAY. HARTLEY R. COLE. fitnessesz 0, M. SHAW, C. E. JAMES.

